| Commit message (Collapse) | Author | Age | Files | Lines |
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This makes parsing registers trickier, but allows a label to have a name
'r0'-'r7', which would otherwise conflict with the registers.
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Bison's implicit $accept rule ends with the END token. The fact that input
could also end with END (via the line non-terminal) resulted in a shift
reduce conflict.
We resolve the conflict by modifying the lexer so that if it encounters end
of file partway through a line, it produces a final EOL token before EOF.
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So far, this only understands instructions, but no operands or labels. It
doesn't handle bad input gracefully. It's just enough to test the basics.
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